Thorney Motorsport 2018-2023 McLaren 720S Full Race Exhaust

Our full race exhaust comprises our catback system (Sports Exhaust) and a pair of cat replacement sections fitted with 200-cell sports cats or decatted pipes. We have designed and specified our own cats for these cars. 200-cell but with a 72-g coating means no engine management lights and maximum power. Decat pipes will require ECU mapping to avoid an EML.

A heat insulation barrier surrounds standard exhausts, so we remove that and then ceramic coat the entire section. Ceramic coating is the best way of dealing with heat; it means the heat is kept inside the pipe and exits the car, not the engine bay. We use Cerakote exhaust coating which is rated to 1400 degrees and comes in a black smooth finish, it will not fade or flake.

We then mount the system to our catback Sports exhaust, ditching the silencers, widening the bore of the balance pipe, repositioning the balance pipe close to the engine (to deepen the note), and creating an effective straight-through exhaust that maximizes airflow and sound.

The sound is fantastic. We are incredibly proud of this system; it is near-perfect for the 720s. It is quiet while cruising, with no boom but a loud bark in gear changes, a scream at higher rpm, and track day noise friendly—100db drive by at 6000rpm at 6m distance, and 99db static at 6500rpm at 1m distance.

Available in stainless steel, titanium, or Inconel.

We only use mandrel bends, so the interior airflow is maximized, and our lifetime warranty covers all.

The tips are interchangeable, so you can select which tip to change with a simple bolt-on olive joint, the same as McLaren uses. So select the tip you’d like, and you can change it whenever you like it.

First Class Customer Service & Satisfaction.

At Function Factory Performance, customer service is our top priority. We know that finding the right parts can be overwhelming, so we’re here to make the process smooth and enjoyable. We’re always ahead of the curve with our commitment to education and awareness. Let’s make this experience simple and awesome together! Don’t hesitate to call us at (480) 576-8606 or click here to reach us via email.

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